Overview
overview
8Static
static
48870e6242e...93.exe
windows7-x64
78870e6242e...93.exe
windows10-2004-x64
7$PLUGINSDI...ns.dll
windows7-x64
3$PLUGINSDI...ns.dll
windows10-2004-x64
3$PLUGINSDI...em.dll
windows7-x64
3$PLUGINSDI...em.dll
windows10-2004-x64
3AutoEncryptDemo.exe
windows7-x64
1AutoEncryptDemo.exe
windows10-2004-x64
1AutoFileCryptTool.exe
windows7-x64
8AutoFileCryptTool.exe
windows10-2004-x64
8Bin/win10x...lt.sys
windows10-2004-x64
1Bin/win10x...mo.exe
windows7-x64
1Bin/win10x...mo.exe
windows10-2004-x64
1Bin/win10x...PI.dll
windows7-x64
1Bin/win10x...PI.dll
windows10-2004-x64
1Bin/win10x...lt.sys
windows10-2004-x64
1Bin/win10x...mo.exe
windows7-x64
1Bin/win10x...mo.exe
windows10-2004-x64
1Bin/win10x...PI.dll
windows7-x64
3Bin/win10x...PI.dll
windows10-2004-x64
3Bin/win32/EaseFlt.sys
windows7-x64
1Bin/win32/EaseFlt.sys
windows10-2004-x64
1Bin/win32/...mo.exe
windows7-x64
1Bin/win32/...mo.exe
windows10-2004-x64
1Bin/win32/...PI.dll
windows7-x64
3Bin/win32/...PI.dll
windows10-2004-x64
3Bin/x64/EaseFlt.sys
windows7-x64
1Bin/x64/EaseFlt.sys
windows10-2004-x64
1Bin/x64/Ea...mo.exe
windows7-x64
1Bin/x64/Ea...mo.exe
windows10-2004-x64
1Bin/x64/FilterAPI.dll
windows7-x64
1Bin/x64/FilterAPI.dll
windows10-2004-x64
1Analysis
-
max time kernel
134s -
max time network
138s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
20-08-2024 00:56
Behavioral task
behavioral1
Sample
8870e6242e397575f54ac0acdfae13117dca54c01198c951537ddc228bb29c93.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
8870e6242e397575f54ac0acdfae13117dca54c01198c951537ddc228bb29c93.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win7-20240704-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/InstallOptions.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral5
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240729-en
Behavioral task
behavioral6
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral7
Sample
AutoEncryptDemo.exe
Resource
win7-20240705-en
Behavioral task
behavioral8
Sample
AutoEncryptDemo.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral9
Sample
AutoFileCryptTool.exe
Resource
win7-20240705-en
Behavioral task
behavioral10
Sample
AutoFileCryptTool.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral11
Sample
Bin/win10x64/EaseFlt.sys
Resource
win10v2004-20240802-en
Behavioral task
behavioral12
Sample
Bin/win10x64/EaseFltCPPDemo.exe
Resource
win7-20240708-en
Behavioral task
behavioral13
Sample
Bin/win10x64/EaseFltCPPDemo.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral14
Sample
Bin/win10x64/FilterAPI.dll
Resource
win7-20240705-en
Behavioral task
behavioral15
Sample
Bin/win10x64/FilterAPI.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral16
Sample
Bin/win10x86/EaseFlt.sys
Resource
win10v2004-20240802-en
Behavioral task
behavioral17
Sample
Bin/win10x86/EaseFltCPPDemo.exe
Resource
win7-20240704-en
Behavioral task
behavioral18
Sample
Bin/win10x86/EaseFltCPPDemo.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral19
Sample
Bin/win10x86/FilterAPI.dll
Resource
win7-20240729-en
Behavioral task
behavioral20
Sample
Bin/win10x86/FilterAPI.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral21
Sample
Bin/win32/EaseFlt.sys
Resource
win7-20240729-en
Behavioral task
behavioral22
Sample
Bin/win32/EaseFlt.sys
Resource
win10v2004-20240802-en
Behavioral task
behavioral23
Sample
Bin/win32/EaseFltCPPDemo.exe
Resource
win7-20240705-en
Behavioral task
behavioral24
Sample
Bin/win32/EaseFltCPPDemo.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral25
Sample
Bin/win32/FilterAPI.dll
Resource
win7-20240704-en
Behavioral task
behavioral26
Sample
Bin/win32/FilterAPI.dll
Resource
win10v2004-20240802-en
Behavioral task
behavioral27
Sample
Bin/x64/EaseFlt.sys
Resource
win7-20240705-en
Behavioral task
behavioral28
Sample
Bin/x64/EaseFlt.sys
Resource
win10v2004-20240802-en
Behavioral task
behavioral29
Sample
Bin/x64/EaseFltCPPDemo.exe
Resource
win7-20240708-en
Behavioral task
behavioral30
Sample
Bin/x64/EaseFltCPPDemo.exe
Resource
win10v2004-20240802-en
Behavioral task
behavioral31
Sample
Bin/x64/FilterAPI.dll
Resource
win7-20240705-en
Behavioral task
behavioral32
Sample
Bin/x64/FilterAPI.dll
Resource
win10v2004-20240802-en
General
-
Target
Bin/win10x86/FilterAPI.dll
-
Size
162KB
-
MD5
1fa51ae9d32ff5ae46127055eb92e756
-
SHA1
0935795959af00b66896d5ff97a508ef295d831b
-
SHA256
e86e8d8950cdeff8fb1aea225a81da0acab253850e1b759ad45b8145c3bfcc5b
-
SHA512
113c9e95d54046d0fa11a77c6cb9691ca1db0529a9b06451fac563fa871dd7555d412448a24a5a6da5bb28a85e25739b42bab62bad143cd65e5358a1372c7493
-
SSDEEP
3072:CFEGiujn6sfaEvL0r2ENTi2eZmHxqblhN1JtK4igHLY2:oE3ujVfaY0rMb1XUUU2
Malware Config
Signatures
-
Program crash 1 IoCs
pid pid_target Process procid_target 5096 4660 WerFault.exe 88 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1388 wrote to memory of 4660 1388 rundll32.exe 88 PID 1388 wrote to memory of 4660 1388 rundll32.exe 88 PID 1388 wrote to memory of 4660 1388 rundll32.exe 88
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Bin\win10x86\FilterAPI.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1388 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Bin\win10x86\FilterAPI.dll,#12⤵
- System Location Discovery: System Language Discovery
PID:4660 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 6203⤵
- Program crash
PID:5096
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4660 -ip 46601⤵PID:4264